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A remote sensing image fusion method based on agihs and low-pass filter

A technology of remote sensing image fusion and low-pass filter, which is applied in the field of remote sensing image fusion, can solve problems such as detail component blurring and spectral loss, and achieve the effects of avoiding spectral loss, solving spectral loss phenomenon, and overcoming detail component blurring phenomenon

Inactive Publication Date: 2017-08-04
TAIYUAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a remote sensing image fusion method based on AGIHS and a low-pass filter in order to solve the problem that the existing remote sensing image fusion method is prone to spectrum loss and detail component blurring

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  • A remote sensing image fusion method based on agihs and low-pass filter
  • A remote sensing image fusion method based on agihs and low-pass filter
  • A remote sensing image fusion method based on agihs and low-pass filter

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Embodiment Construction

[0057] The remote sensing image fusion method based on AGIHS and low-pass filter, this method is realized by the following steps:

[0058] 1) Carry out adaptive generalized IHS transformation for source multispectral image, thus obtain optimal brightness component; The specific steps of described adaptive generalized IHS transformation include:

[0059] 1.1) Perform weighted summation for the red light band, green light band, blue light band, and near-infrared band of the source multispectral image, thereby obtaining the brightness component; the specific summation formula is as follows:

[0060]

[0061] In formula (1): I_weight is the brightness component; w 1 、w 2 、w 3 、w 4 are weights, and their ranges are (0, 1); img_ms(R), img_ms(G), img_ms(B), img_ms(N) are the red light band, green light band, Blue light band, near infrared band;

[0062] 1.2) Calculate the difference between the brightness component and the source panchromatic image; the specific calculation f...

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Abstract

The invention relates to remote sensing image fusion technology, in particular to a remote sensing image fusion method based on AGIHS and a low-pass filter. The invention solves the problems that the existing remote sensing image fusion method is easy to produce spectrum loss phenomenon and detail component fuzzy phenomenon. The remote sensing image fusion method based on AGIHS and low-pass filter, the method is realized by the following steps: 1) Adaptive generalized IHS transformation is performed on the source multispectral image, thereby obtaining the optimal brightness component; 2) Using low-pass filter 3) Add high-frequency components to each band of the source multispectral image to obtain a new fusion image. The invention is suitable for fusion of remote sensing satellite images, radar images, general natural images and medical images.

Description

technical field [0001] The invention relates to remote sensing image fusion technology, in particular to a remote sensing image fusion method based on AGIHS and a low-pass filter. Background technique [0002] As an important branch of multi-source data fusion, remote sensing image fusion has become a research hotspot in the field of image engineering in recent years. Remote sensing image fusion specifically refers to a new technology for comprehensive processing of images from different sources. Its purpose is to extract and synthesize information from multiple source images, so as to obtain more accurate, comprehensive and reliable images of the same scene or target. image description for . Using remote sensing image fusion technology can improve the reliability and automation level of target recognition. Remote sensing images can be divided into the following two types: multi-spectral images (Multi-Spectral, MS) and panchromatic images (Panchromatic, PAN). Among them, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T5/50G06T3/40
Inventor 刘帆陈宏涛柴晶
Owner TAIYUAN UNIV OF TECH